The truth of the matter is, dreams are a manifestation of our subconscious, so only you know the true answer as to what these dreams mean and what they entail. Maybe you should do some soul-searching.
This is a little bias advice, but here goes: I think you should try some artistic endeavor. You clearly are into fantasy and other similar genres, it is materializing in the form of dragons and mythical creatures. Therefore, perhaps you should attempt drawing, writing, or music. It's a good outlet for all this imagination, and you wouldn't want it to go to waste.
Keeping all this artistic energy bottled up is truly criminal. It's practically human nature to be artists. With all this fresh creativity, try your hand at showing yourself what you are capable of!